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145032943 = 1113184813
BaseRepresentation
bin10001010010100…
…00011011101111
3101002220102210111
420221100123233
5244112023233
622220320451
73410521366
oct1051203357
9332812714
10145032943
117495a440
12406a3127
1324080113
14153947dd
15caecacd
hex8a506ef

145032943 has 4 divisors (see below), whose sum is σ = 158217768. Its totient is φ = 131848120.

The previous prime is 145032919. The next prime is 145032959. The reversal of 145032943 is 349230541.

145032943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145032943 - 29 = 145032431 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145032913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6592396 + ... + 6592417.

It is an arithmetic number, because the mean of its divisors is an integer number (39554442).

Almost surely, 2145032943 is an apocalyptic number.

145032943 is a deficient number, since it is larger than the sum of its proper divisors (13184825).

145032943 is a wasteful number, since it uses less digits than its factorization.

145032943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13184824.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 145032943 is about 12042.9623847291. The cubic root of 145032943 is about 525.3985702011.

The spelling of 145032943 in words is "one hundred forty-five million, thirty-two thousand, nine hundred forty-three".

Divisors: 1 11 13184813 145032943